000 00315nam a2200121Ia 4500
005 20251007104425.0
008 251006s9999 xx 000 0 und d
100 _apolikarov,a.
245 0 _ascience and philosophy polikarov,a.
260 _a1st ed | Sofia Bulgarian Academy of sc..
260 _c1973
942 _cBOK
999 _c6919
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